Results 1 to 10 of about 12,566,242 (368)

Galaxy interactions II: High density environments [PDF]

, 2011
With the aim to assess the role of dense environments in galaxy interactions, properties we present an analysis of close galaxy pairs in groups and clusters, obtained from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7).
Abazajian, Abazajian, Alonso, Alonso, Alonso, Baldry, Baldry, Balogh, Balogh, Balogh, Barton, Berlind, Blanton, Brinchmann, Ceccarelli, Colless, Cooper, Cooper, Coziol, D. G. Lambas, Darg, De Lucia, Dressler, Ellison, González, González, Gunn, Heiderman, Hopkins, Hopkins, Huchra, Kauffmann, Kennicutt, Lacerna, Lambas, Lambas, Lin, Mamon, Mamon, McIntosh, Merchán, Michel-Dansac, Morgan, N. Padilla, Padilla, Padilla, Padilla, Park, Patton, Pérez, Robaina, S. Alonso, Simard, Skibba, Skibba, Strauss, V. Mesa, von der Linden, Wang, Wong, Yang, York, Zapata, Zibetti, Zwicky   +64 more
core   +1 more source

Galaxy groups in the 2dF Galaxy Redshift Survey: galaxy spectral type segregation in groups [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
3 figures replaced, accepted for publication in ...
Diego G. Lambas, A. A. Zandivarez, M. E. Merchán, H. J. Martínez, Hernán Muriel, Mariano Dominguez   +5 more
openaire   +4 more sources

A statistical study of the luminosity gap in galaxy groups

, 2010
The luminosity gap between the two brightest members of galaxy groups and clusters is thought to offer a strong test for the models of galaxy formation and evolution.
Ghanbari, Jamshid, Khosroshahi, Habib G., Koohpaee, Ali, Rahmani, Hadi, Tavasoli, Saeed   +4 more
core   +1 more source

The Photography of Groups of Galaxies [PDF]

Symposium - International Astronomical Union, 1978
The method of combining several negatives together is at last coming into use. Forty years ago this method was used for the first time by Leontovsky in Leningrad. Putting together many negatives he was able to do photometry of M31 to fainter magnitudes than was possible photoelectrically.
openaire   +2 more sources

BSG alignment of SDSS galaxy groups

, 2013
We study the alignment signal between the distribution of brightest satellite galaxies (BSGs) and the major axis of their host groups using SDSS group catalog constructed by Yang et al. (2007).
Chen, Xuelei, Li, Zhigang, Wang, Xin, Wang, Yougang, Xie, Lizhi, Yang, Xiaohu   +5 more
core   +1 more source

Nearby Optical Galaxies: Selection of the Sample and Identification of Groups [PDF]

, 2000
In this paper we describe the Nearby Optical Galaxy (NOG) sample, which is a complete, distance-limited ($cz\leq$6000 km/s) and magnitude-limited (B$\leq$14) sample of $\sim$7000 optical galaxies.
Armando Pisani, Binggeli B., Christian Marinoni, Epchtein N., Escalera E., Focardi P., Fouque P., Garcia A. M., Giuliano Giuricin, Gourgoulhon E., Hermit S., Hudson M. J., Hudson M. J., Hudson M. J., Hudson M. J., Lorenzo Ceriani, Materne J., Moore B., Nolthenius R., Pisani A., Ramella M., Ramella M., Trasarti-Battistoni R., Vennik J., Webster M.   +24 more
core   +2 more sources

Radio galaxy feedback in X-ray selected groups from COSMOS: the effect on the ICM [PDF]

, 2010
We quantify the importance of the mechanical energy released by radio-galaxies inside galaxy groups. We use scaling relations to estimate the mechanical energy released by 16 radio-AGN located inside X-ray detected galaxy groups in the COSMOS field.
A. Finoguenov, A. M. Koekemoer, A. Oklopčić, Bîrzan, Bîrzan, Condon, D. B. Sanders, D. Pierini, D. Thompson, De Young, Donahue, Drory, Dunkley, E. Schinnerer, Finoguenov, G. W. Pratt, G. Zamorani, Giodini, Gitti, H. Boehringer, Heinz, Ilbert, J. S. Kartaltepe, L. Bîrzan, Leauthaud, Lin, M. Salvato, Markevitch, Peterson, Pratt, Puchwein, R. Massey, Reiprich, S. Giodini, Salvato, Schinnerer, Scoville, Short, Skrutskie, Smolčić, Smolčić, Sun, V. Smolčić, Voit, Wright   +44 more
core   +4 more sources

Radio emission of Shakhbazian Compact Galaxy Groups [PDF]

, 1999
Three hundred fifty three radio sources from the NRAO VLA Sky Survey (NVSS) (Condon et al. 1998) and the FIRST Survey (White et al. 1997}, are detected in the areas of 179 Shakhbazian Compact Groups (ShCGs) of galaxies.
Amirkhanian A. S., Amirkhanian A. S., Baier F. W., Baldwin J. E., Barnes J., Cohen A. M., de Ruiter H. R., del Olmo A., H. M. Tovmassian, H. Tiersch, Kodaira K., Kodaira K., Kodaira K., Lynds C. R., Mendes de Oliveira C., Menon T. K., Menon T. K., O. V. Verkhodanov, Saracco P., Shakhbazian R. K., Stoll D., Stoll D., Tiersch H., Tiersch H., Tovmassian H. M., Tovmassian H. M., Tovmassian H. M., Tovmassian H. M., V. H. Chavushyan, Vennik J., Walke D. G.   +30 more
core   +2 more sources

Effects of Quasar Feedback in Galaxy Groups [PDF]

, 2008
We study the effect of quasar feedback on distributions of baryons and properties of intracluster medium in galaxy groups using high-resolution numerical simulations. We use the entropy-conserving Gadget code that includes gas cooling and star formation,
Allen, Allen, Arthur Kosowsky, Bhattacharya, Bialek, Bondi, Bondi, Borgani, Borgani, Chatterjee, Croston, Di Matteo, Di Matteo, Di Matteo, Eke, Ettori, Ettori, Ettori, Ettori, Evrard, Evrard, Fabian, Finoguenov, Fowler, Frenk, Heinz, Hernandez-Monteagudo, Hernquist, Hoyle, Jetha, Kaiser, Katz, Kay, Kay, Khalatyan, Komatsu, Kosowsky, Lubin, Maturi, Metzler, Mohr, Mohr, Monaghan, Muanwong, Nagai, Nath, Navarro, Nulsen, Pointecouteau, Ponman, Popesso, Roncarelli, Ruhl, Sanderson, Sanderson, Scannapieco, Scannapieco, Sehgal, Sehgal, Shakura, Sijacki, Sijacki, Spergel, Springel, Springel, Springel, Suman Bhattacharya, Sunyaev, Tago, Thacker, Tiziana Di Matteo, Valageas, Valdarnini, Vikhlinin, White, Willis   +75 more
core   +1 more source

The motions of clusters and group of galaxies

The Astrophysical Journal, 1994
25p plaintex submitted to The Astrophysical ...
Mirt Gramann, Mirt Gramann, Renyue Cen, Neta A. Bahcall   +3 more
openaire   +4 more sources